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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Sequence data reveals phylogenetic affinities of fungal anamorphs Bahusutrabeeja, Diplococcium, Natarajania, Paliphora, Polyschema, Rattania and Spadicoides
Fungal Diversity, Volume 44, Year 2010
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Description
Partial 28S rRNA gene sequence-data of the strains of the anamorphic genera Bahusutrabeeja, Diplococcium, Natarajania, Paliphora, Polyschema, Rattania and Spadicoides were analysed to predict their phylogenetic relationships and taxonomic placement within the Ascomycota. Results indicate that Diplococcium and morphologically similar genera, i.e. Spadicoides, Paliphora and Polyschema do not share a recent common ancestor. The type species of Diplococcium, D. spicatum is referred to Helotiales (Leotiomycetes). The placement of Spadicoides bina, the type of the genus, is unresolved but it is shown to be closely associated with Porosphaerella species, which are sister taxa to Coniochaetales (Sordariomycetes). Three Polyschema species analysed in this study represent a monophyletic lineage and are related to Lentithecium fluviatile and Leptosphaeria calvescens in Pleosporales (Dothideomycetes). DNA sequence analysis also suggests that Paliphora intermedia is a member of Chaetosphaeriaceae (Sordariomycetes). The type species of Bahusutrabeeja, B. dwaya, is phylogenetically related to Neodeightonia (=Botryosphaeria) subglobosa in Botryosphaeriales (Dothideomycetes). Monotypic genera Natarajania and Rattania are phylogenetically related to members of Diaporthales and Chaetosphaeriales, respectively. Future studies with extended gene datasets and type strains are required to resolve many novel but morphologically unexplainable phylogenetic scenarios revealed from this study. It is increasingly becoming evident that a fungal lineage may include a mosaic of anamorphs, teleomorphs and pleomorphs whose morphologies may not always be correlated. It is therefore suggested that where possible all new species descriptions, whether teleomorphic, anamorphic or pleomorphic, should include DNA sequence-data to facilitate amalgamation of anamorphic and pleomorphic genera in a single phylogenetic classification system. © 2010 Kevin D. Hyde.
Authors & Co-Authors
Shenoy, Belle Damodara
India, Chandigarh
Csir-institute of Microbial Technology
Jeewon, Rajesh
Mauritius, Reduit
University of Mauritius
Wang, Hongkai
China, Hangzhou
Zhejiang University
Amandeep, Kaur
India, Chandigarh
Csir-institute of Microbial Technology
Ho, Wellcome Hong
New Zealand, Wellington
Ministry of Agriculture and Forestry - new Zealand
Bhat, Darbhe Jayarama
India, Taleigao
Goa University
Crous, Pedro Willem
Netherlands, Utrecht
Westerdijk Fungal Biodiversity Institute - Knaw
Hyde, Kevin D.
Thailand, Chiang Rai
Mae Fah Luang University
Saudi Arabia, Riyadh
College of Sciences
Statistics
Citations: 61
Authors: 8
Affiliations: 8
Identifiers
Doi:
10.1007/s13225-010-0059-8
ISSN:
15602745
e-ISSN:
18789129
Research Areas
Cancer
Genetics And Genomics